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From: Oliver Upton To: Sean Christopherson Cc: David Matlack , Paolo Bonzini , Marc Zyngier , James Morse , Suzuki K Poulose , Zenghui Yu , Huacai Chen , Aleksandar Markovic , Anup Patel , Atish Patra , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, Raghavendra Rao Ananta Subject: Re: [PATCH 0/7] KVM: Add a common API for range-based TLB invalidation Message-ID: References: <20230119173559.2517103-1-dmatlack@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230124_165144_739471_53A53B3B X-CRM114-Status: GOOD ( 20.83 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jan 25, 2023 at 12:46:59AM +0000, Sean Christopherson wrote: > On Thu, Jan 19, 2023, David Matlack wrote: > > This series introduces a common API for performing range-based TLB > > invalidation. This is then used to supplant > > kvm_arch_flush_remote_tlbs_memslot() and pave the way for two other > > patch series: > > > > 1. https://lore.kernel.org/kvm/20230109215347.3119271-1-rananta@google.com/ > > > > Adds ARM support for range-based TLB invalidation and needs a > > mechanism to invoke it from common code. This series provides such a > > mechanism via kvm_arch_flush_remote_tlbs_range(). > > > > 2. https://lore.kernel.org/kvm/20221208193857.4090582-1-dmatlack@google.com/ > > > > Refactors the TDP MMU into common code, which requires an API for > > range-based TLB invaliation. > > > > This series is based on patches 29-33 from (2.), but I made some further > > cleanups after looking at it a second time. > > > > Tested on x86_64 and ARM64 using KVM selftests. > > Did a quick read through, didn't see anything I disagree with. LGTM for the tiny amount of arm64 changes, though I imagine David will do a v2 to completely get rid of the affected Kconfig. > Is there any urgency to getting this merged? If not, due to the dependencies > with x86 stuff queued for 6.3, and because of the cross-architecture changes, it > might be easiest to plan on landing this in 6.4. That would allow Paolo to create > an immutable topic branch fairly early on. +1, that buys us some time to go through the rounds on the arm64 side such that we could possibly stack the TLBIRANGE work on top. -- Thanks, Oliver _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel